ssms - Strange behaviour when renaming a column in SQL Server 2008 -

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I need to write some code to change the column name in SQL Server 2008. A duplicate renaming:

NAME1 ==> TEMPNAME ==> NAME2

Apply a BEGIN transfer sp_rename N'dbo.Table_1.columFirstName ', N'Tmp_columSecondName_2', 'Columns' GO Exclute sp_rename N'dbo.Table_1.Tmp_columSecondName_2 ', N'columSecondName', 'COLUMN' Go Object Table dbo.Table_1 SET (LOCK_ESCALATION = TABLE) Go COMMIT

But When I walk once, it just works fine.

Why is the name of the column first given a temporary name?

Thanks

You can swap column names between two columns. Management studios re-name all the columns with the names of temporary names, and then change them to the names of the last names.

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